#third li {
    font-size: 18px;
}

#third-1 {
    margin-left: 175px;
}

#forthtext {
    margin-left: 170px;
    width: 1200px;
    height: 50px;
    margin-top: 10px;
}

#timeline {
    border: 1px solid #ccc;

}

#forthbutton{
    height: 50px;
    margin-right: 110px;
    margin-top: 10px;
}